Question

Велосипедист и мотоциклист выехали одновременно навстречу друг другу из двух посёлков. Велосипедист ехал со скоростью 12 км/ч, а мотоциклист - 40 км/ч. 1)Найди скорость сближения велосипедиста и мотоциклиста. 2)На сколько километров велосипедист и мотоциклист приблизятся друг к другу за 2 ч?

Answer 1

1) 12+40=52(км/ч) скорость сближения.

2)52×2=104(км) на столько сблизятся велосипедист и мотоциклист.

Answer 2

1) 12+40 ответ 52км \ч
Скорость сближения

Answer 3

Problem Analysis

We are given that a cyclist and a motorcyclist start simultaneously from two different villages and are moving towards each other. The cyclist has a speed of 12 km/h, while the motorcyclist has a speed of 40 km/h. We need to find the following: 1. The speed at which the cyclist and the motorcyclist are approaching each other. 2. The distance by which the cyclist and the motorcyclist will be closer to each other after 2 hours.

Solution

1. To find the speed at which the cyclist and the motorcyclist are approaching each other, we can add their speeds together. The relative speed of the cyclist and the motorcyclist is the sum of their individual speeds. Therefore, the speed at which they are approaching each other is 12 km/h + 40 km/h = 52 km/h.

2. To find the distance by which the cyclist and the motorcyclist will be closer to each other after 2 hours, we can multiply their relative speed by the time. The formula to calculate distance is distance = speed × time. Therefore, the distance by which they will be closer to each other after 2 hours is 52 km/h × 2 h = 104 km.

Therefore, the answers to the given questions are: 1. The speed at which the cyclist and the motorcyclist are approaching each other is 52 km/h. 2. The distance by which the cyclist and the motorcyclist will be closer to each other after 2 hours is 104 km.

Please let me know if anything is unclear or if you have any further questions!